If a=I+2j+3k and b=2i+4j-5k represent two adjacent sides of a parallelogram|Vector algebra|12|CBSE

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Areee sir ye toh koi bata dega concept batao ki Diagonals of a parallelogram is a + b and a - b kyu hoga

blinger
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But sir pta kaise chlega ki kon sa question mai ya a+b or a-b lgega

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